Flutter Dependency

activity_files

A pure Dart toolkit for parsing, editing, validating and converting workout activity files across GPX, TCX, FIT, GeoJSON and CSV. Parsers never throw. Every issue surfaces as a diagnostic with a suggested fix, and FIT support is verified against real device files, not just the spec.

SDK
Dart
Flutter
Formats
GPX
TCX
FIT
GeoJSON
CSV
Platform
Android
iOS
Linux
macOS
Web
Windows
License
BSD 3-Clause

Local Workout Library

extractor

Build a local library of your fitness activities. Import from Withings, Apple Health or local files, manage your collection and export or sync to Strava with a clear breakdown of anything dropped or adjusted along the way. Everything stays on your device.

SDK
Flutter
Sources
Withings
Apple Health
Strava
Local files
Status
In Development
Release
Q3 2026